Sorry for the delay.

The rsnapshot file is just

        % wc -c /var/log/rsnapshot
        433435 /var/log/rsnapshot

See attachment. The important part seems to be the very long lines in the
text file. "time zcat rsnapshot.log.gz" gave me for a local network
connection

253x50:
real    0m0.031s
user    0m0.006s
sys     0m0.005s


254x50:
real    0m0.031s
user    0m0.004s
sys     0m0.007s


255x50:
real    0m0.031s
user    0m0.012s
sys     0m0.000s


256x50:
real    0m0.068s
user    0m0.004s
sys     0m0.009s


257x50:
real    0m0.063s
user    0m0.000s
sys     0m0.012s


258x50:
real    0m0.064s
user    0m0.004s
sys     0m0.006s


Please note the worse performance for 256x50 and larger.

I verified this for Xorg using intel graphics and for the proprietary
Nvidia graphics.


Regards
Harri

Attachment: rsnapshot.log.gz
Description: application/gzip

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